Charge-transporting layers(CTLs)are important in determining the performance and stability of perovskite solar cells(PSCs).Recently,there has been considerable use of self-assembled monolayers(SAMs)as charge-selective...Charge-transporting layers(CTLs)are important in determining the performance and stability of perovskite solar cells(PSCs).Recently,there has been considerable use of self-assembled monolayers(SAMs)as charge-selective contacts,especially for hole-selective SAMs in inverted PSCs as well as perovskite involving tandem solar cells.The SAM-based charge-selective contact shows many advantages over traditional thin-film organic/inorganic CTLs,including reduced cost,low optical and electric loss,conformal coating on a rough substrate,simple deposition on a large-area substrate and easy modulation of energy levels,molecular dipoles and surface properties.The incorporation of various hole-selective SAMs has resulted in high-efficiency single junction and tandem solar cells.This topical review summarizes both the advantages and challenges of SAM-based charge-selective contacts,and discusses the potential direction for future studies.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.22179037)the Fundamental Research Funds for the Central Universities.Thanks for the financial support of‘Zhang Jiangshu’cultivation program.The authors declare no competing interests.
文摘Charge-transporting layers(CTLs)are important in determining the performance and stability of perovskite solar cells(PSCs).Recently,there has been considerable use of self-assembled monolayers(SAMs)as charge-selective contacts,especially for hole-selective SAMs in inverted PSCs as well as perovskite involving tandem solar cells.The SAM-based charge-selective contact shows many advantages over traditional thin-film organic/inorganic CTLs,including reduced cost,low optical and electric loss,conformal coating on a rough substrate,simple deposition on a large-area substrate and easy modulation of energy levels,molecular dipoles and surface properties.The incorporation of various hole-selective SAMs has resulted in high-efficiency single junction and tandem solar cells.This topical review summarizes both the advantages and challenges of SAM-based charge-selective contacts,and discusses the potential direction for future studies.
